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During games players were taken to hospitals due to skull fractures and head related injuries. 18 players were killed due to head injuries which led to some players wearing leather caps and strapped them to there heads which became the "Leatherhead" look among player.

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In the 1940's John T. Riddell was manufacturing the first plastic helmets which had suspension system which absorbed and took hits to the head better without risking injury to the player wearing it. So when they began to wear the helmets later on the U.S. Army began to issue them out to soliders across the world fighting in a war.

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The first face mask was worn by Cleveland Browns player Otto Graham after he got elbowed in the face during a running play. He had a cut and gash on his face and he got bandaged up and to prevent another injury to the face Otto got a plastic clear tape and taped it to the helmet. He later stuck with the look after that game.

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Helmet communications system first introduced

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Helmet communications system first introduced

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In a game against the Detroit Lions, Browns coach Paul Brown introduced a radio communication system that was placed inside of the Quaterbacks helmet and was used to send plays without having to run back to the side line. When the Lions head coach noticed that the browns weren't using there usual play calls he looked into the team and contacted the NFL. NFL found out about the system and suspended the use of the system and Paul Brown was later suspended three games for using it. It was brought back into the NFL in the 1993-94 season.

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In 1915 after the plastic helmet was made players found it uncomfortable when wearing so they added foam padding to make it more comfortable to wear and to make sure the helmet dosen't bounce when running during a play.

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Since then technology has been a key part to prevent head injuries in football especially with the new age of football helmets. Since then there have been attempts to fix the problem but they looked into how they were hit and designed a new helmet in the 200's called the Riddel Revolution or some people call it the bucket helmet of how it looked when worn. At the time it was state of the art and was known to be most worn by QB Matthew Stafford in Detroit.